Stile and rail rabbeter.



U. E. EVANS.

STILE AND RAIL RABBETER. APPLICATION FILED SEPT. 25, 1912.

1,091,203. Patented Mar 24, 1914 3 SHEETS-SHEET l.

awn/1 101 0 0. E. EVANS.

STILE AND RAIL RABBE'I'BR.

APPLICATION FILED SEPT. 25, 1912.

Patented Mar. 24, 1914.

3 SHEETS-SHEET 2.

G. E. EVANS.

STILE AND RAIL RABBETER.

APPLIOATION FILED SEPT. 25, 1912.

1,091,203 I I Patented Mar. 24, 19m

3 SHEETS-SHEET 3. 619

.fifiya 5 fornia, have invented certain new and useful CHARLES E. EVANS, or WEED, CALIFORNIA.

STILE AND RAIL RABBETER.

Specification of Letters Patent.

Patented Mar. 2%, 1914.

Application filed September 25, 1912. Serial No. 722,306.

To r/Zl whom it may concern Be it known that I, GHARLns E. EVANS, a citizen of the United States, and resident of Need, Siskiyou county, State of Cali- Improvements in Stile and Rail Rabbeters, of which the following is a specification.

This invention relates to rabbeting machines and more particularly to a machanism which may be attached to machines adapted to rabbet door stiles so that the edge of the stile will be automatically undermined or cut away by a groove along the portion of the stile which receives the glass.

The objects of the invention are to provide a mechanism for this purpose which may be attached to the usual stile rabbeting or sticking machines or which'may be operated independently thereof and which is adjustable to make the proper cut in stiles of different lengths and also to cut the grooves in the stile to correspond with the length and position of the glass which is used in the door.

The novel features of the invention will be apparent from the following description taken in connection with the accompanying drawings, in which Figure 1 is a side elevation of a rabbeting machine having my invention applied thereto; Fig. 2 is a plan view; Fig. 3is an end view thereof; Fig. 4: is an enlarged view of the traction wheel with certain parts broken] away; Fig. 5 is a fragmentary section of the tract-ion wheel showing the fixed cam and the cam roller in operative relation; Fig. 6 is a fragmentary section of the traction wheel showing the marking device; Fig. 7 is a fragmentary section of the traction wheel and the movable cam; and Fig. 8 is a section through a door stile.

Referring to the drawings it will be observed that I have illustrated somewhat diagrammatically a rabbeting or sticking' machine adapted to plane the edge of door stiles. The machine consists of a frame or base 10 upon which is mounted a table 11 and a shaft 12, the latter carrying the usual knives or cutters 18 which plane or rabbet the edge of the stile A. The stiles A may be fed through the machine in the direction of the arrows by any suitable mechanism such as the feed rolls 14, one stile directly following the other with their ends in contact.

The mechanism so far described is in this mechanism I will common use and before describing in detail the lmpro-vements which I have added to describe its purpose in connection with the parts of which a door is formed.

A door as ordinarily constructed comprises two vertical stiles and top and bottom rails and also intermediate rails to reinforce the stiles and support the panels. In passing the stiles through the rabbeting machine the edge of the stile is usually planed as shown in Fig. 8 to form the curved surfaces 15 and the groove 16, this groove being for the purpose of receiving the glass or tongues formed on the ends of the cross rails of the door, the ends of these cross rails being also arranged to fit the curved surfaces 15. Then it is desired to provide a door with a glass panel the parts must be so constructed that the glass may be inserted after the door is put together and therefore it is necessary to cut away the material at one side of the groove 16 and replace the same by a piece of molding which is nailed to the stile after the glass has been inserted. The purpose of the present invention is to cut a groove 17 in the side of the stile so that the material on one side of the groove 16 may be readily removed by simply making transverse cuts at the ends of the groove 17. In order to provide a machine for cutting the groove 17 in stiles of difierent lengths and also to out these grooves to correspond with the length of glass to be used, it is necessary to provide an adjustable mechanism for cutting the grooves.

Referring now to the drawings showing the machine, it will be observed that I have provided in connection with the common form of rabbeting machine a traction wheel 18 which is mounted on a shaft 19 carried by an arm 20, the latter being arranged on a shaft '21 which is supported in bearings 22 and 23 on a pedestal 24. The traction wheel 18 consists of a disk 25 having a hub arranged on the shaft 19, and a disk 26 which is bolted to one side of the disk 25 by means of bolts 27' which are arranged in the circumferential slots 28 in the disk 26, these slots permitting one of the disks to be rotated relatively to the other. The peripheral portion of the disk 25 is provided with radial grooves 28 having parallel sides and in which are arranged arms-29 on the circumferential segments 30. These seg- I the bolts 27 are d i of the stile.

ments are provided with suitably formed teeth 31 and are adapted to run in the groove 16 of the stile as the latter moves through the machine, so that the traction wheel 18 will be rotated by the stile. Each of the arms 29 is provided with a pin 32 which carries a small roller 33 arranged in the slots 34 in the disk 26.

The bolts 27 are screwed into the disk 25 and when loosened permit the disk 26 to be rotated relatively to the disk 25 to cause the segments 30 to be moved radially owing to the arrangement of the slots 34 and the rollers It will be obvious that by rotating the disk 26 relatively to the disk 25 in one direction the segments 30 will be moved outwardly and by moving the disk 36 in an opposite direction the segments 30 will be moved inwardly and thereby vary the length of the circumference of the traction wheel.

For the purpose of rotating the disk 26 relatively to the disk of opposite the hand wheel 36 rotatably secured in a block 37 which is pivoted to the disk 26, and the threaded portion of the shaft 26 engages a nut 38 which is pivotally connected with the disk 25. This construction, as will be readily understood, permits relative rotation of the disks by rotating the hand wheel 35.

When it is desired to adjust the segments 30 the bolts 27 are loosened and the hand wheel 35 rotated in the proper direction. When the desired adjustment has been made esigned to clamp the two disks together.

In the operation of the machine the traction wheel 30 is caused to make one complete revolution by each stile and in order to provide for stiles of different lengths it is necessary to make the circumference of the wheel adjustable. For the purpose of indicating the length of the circumference for any given adjustment a pointer or index 39 is secured to the disk 25 and movable over a suitable scale 40 arranged 011 the disk 26 and movable therewith.

The groove 17 is cut in the side of the stile by means of a circular saw 41 which is mounted on the upper end of a vertical shaft 42. The shaft 42 is arranged in bearings 43 and 44 and provided with a pulley 45 driven by a belt 46. At the upper end of the shaft 42 above the saw 41 is arranged a disk 47 which, in the operation of the machine. en-

. gages the upper edge of the stile and holds the saw at the proper distance therefrom. I this disk thus acting as a gage to determine t the position of the cut below the upper edge The bearings 43 and 44 are carried by arms 48 and 49 respectively, these arms be ing secured on a vertical shaft 50 which is 1 supported by bearings 51 and 52 and an adjustable pivot 53, the latter being arranged at the lower end of the shaft 50 and being supported on a bracket 54 secured to the frame or base 10. An arm 55 is also secured to the shaft 50 and a rctract-ile spring 56 has one endthereot' secured to this arm and the other end connected with the frame 10. The spring 56 is normally under tension and is for the purpose of withdrawing the saw 41 from the stile A.

The disk 25 of the traction wheel is provided. with circumferential ribs or dove tails 57 and 5S and the dove tail 56 has adjustably arranged thereon a. marker 59. As shown in Fig. 6, this marker consists of a member 60 having a chisel shaped end 61 which is adapted to engage the stile and make a mark therein or enter the space between the ends of the stiles. The member 60 carries a friction plate 62 and a thumb screw 63 the latter engaging the plate 62 and being adapted to force the same against the surface of the dove tail 58 to screw the marker thereto. By loosening the screw 63 the marker may be moved along the dove tail 58 to any desired position and thus secured by tightening the screw 63.

he saw 41 is moved into ting relation with the stile V shaft 50. As hereinbefore described, the spring 56 locks the shaft 50 to withdraw the saw from the stile and in order to move the saw into cutting relation with the stile I provide on the shaft 50 an arm 64 which carries a cam roller 65 and has at its end a and out of cutby rocking the the position 41 is in cutting relation with the stile. The cam roller 65, is, as shown in Fig. 2, adapted to contact with the side of the disk 25. For the purpose of rocking the shaft 50 to move the saw into cutting relation with the stile I provide on the side of the disk 25, in the path of the roller 65. two cams one of which is fixed on the disk 25 and the other of which is adjustably secured to the dove tail 57. i

In the drawings the fixed cam is shown at 68 and the adjustable cam at 69. In, Fig. 5 I have shown the cam roller 65 in operative relation with the fixed cam 68. The adjustable cam 69 comprises a plate 70 having secured thereto a plate or guide 71 which engages one side of the dove tail 57 and is secured to the plate 70 by means of screws 72. The plate 71 is provided with a lateral projection or cam surface 73 adapted to be engaged by the cam roller 65. A plate or guide 74 is secured to the plate 70 by means of screws 7 5 which extend through elongated slots 7 6 in the plate 70 and permit the plate 74 to be moved relatively to the plate TO for the purpose of clamping the adjustable cam member to the dove tail 57. The

where the saw I wheel, may be clamping is effected by means of an eccentric 77 provided with a hand lever 78 and pivoted to the plate 70. By rotating the eccentric '77 it will be obvious that the plate may be clamped against the dove tail 57 The pawl 67 is arranged on a pivot 79 and an arm or trip lever 80 is also secured to this pivot. The pivot 79 is carried by a bracket 81 which is supported by means of a post 82. A spring 83 has one end thereof secured to the bracket 81 and the other end thereof in engagement with the pawl 67 andtends to turn the latter toward the traction wheel 18. (See Fig. 2). The pawl 67 is provided with a finger 84E projecting rearwardly therefrom, this finger engaging a pin 85 on the bracket 81 and limiting the movement of the pawl 67 in one direction.

The end of the trip lever 80 is arranged adjacent the side of the disk 25 and the tripping cam 86 on the plate 70 of the movable cam member 69 is adapted to strike the end of the trip lever 80 and swing the latter and the pawl 67 so that the pawl is disengaged from the arm 6e and permits the spring 56 to rock the shaft 50 in the direction to with draw the saw from cutting relation with the stile.

In order to prevent the cam roller from being violently thrust against the side of the disk 25 by the spring 56, the cam 73 has been provided, this cam being in a position to engage the cam roller and prevent the rocking of the shaft 50 when the pawl 67 is disengaged from the arm 64. By providing the cam 73 with a surface which inclines toward the side of the disk 25 the cam roller 65 will gradually move toward the side of the disk and thus avoid undue shock and strain on the parts.

In order to provide convenient means for setting the cam member 69 so as to make a cut of any desired length I have provided a graduated scale 87 on the side of the disk 25.

In order to lift the traction wheel 18 out of the groove 16 I have arranged above the pedestal 24; and supported thereon by means of a bracket 88, a lever 89 having one end connected with the arm 20 by means of a link 90 and the other end thereof provided with a downwardly extending operating handle 91. By pulling down on the handle 91 the arm 20, together with the traction lifted, the arm 20 swinging on the shaft 21.

From the foregoing description it will be understood that as the stiles move through the machine in succession the traction wheel makes one complete revolution for each stile and when the fixed cam 68 engages the cam roller 65 the saw 41 will be moved into cutting relation with the stile, and will be held by the pawl 67. WVhen the tripping cam 86 strikes the lever 80 the pawl 67 is disengaged from the arm 64: and the saw 41 is drawn out of cutting relation with the stile, and remains in this position until the cam 68 again engages the roller 65. By means of the marker 59 any variance between the circumference of the traction wheel and the length of the stile will be at once observable by the operator of the machine owing to the fact that the marker 59 should, at each revolution, coincide with the spaces between stiles and if it does not coincide with these spaces it will make an indentation in one of the stiles which will warn the operator that the machine is not working properly. When it is desired to use the invention independently of the sticking machine, it is only necessary to provide suitable feed rollers to move the stiles.

It will be obvious to those skilled in the art that various changes in the details of construction may be made in the apparatus and it will therefore be understood that the invention is not limited to. the precise details shown and described.

Having thus described my invention what I claim is 1. In a machine of the class, described, the combination of means for moving the material through the machine, a cutting tool, a wheel adapted to be rotated by the material, a cam on said wheel, means whereby said cam is adapted to move said cutting tool into cutting relation with the material, means independent of said cam for holding the. cutting tool in cutting relation with the material, and a second cam on said wheel adapted to release said means.

2. In a machine of the class described, the combination of means for moving the material throughthe machine, a cutting tool, an adjustable wheel adapted to be rotated by the material, a cam carried by said wheel, means whereby said cam is adapted to move the cutting tool into cutting relation with the material, a spring pressed detent for holding the cutting tool in cutting relation with the material, a second cam carried by said wheel adapted to release said detent, and means for withdrawing the cutting tool from the material.

3. In a machine of the class described, the combination of means for moving the material through the machine, a cutting tool, an adjustable wheel adapted to be rotated by the material, a cam carried by said wheel, means whereby said cam is adapted to move said cutting tool into cutting relation with the material, a spring pressed detent adapted to hold the cutting tool in cutting relation with the material, a second cam carried by said wheel and adjustable circumferentially thereon for releasing said detent, and means for withdrawing the cutting tool from the material.

4. In a machine of the class described, the

combination of means for moving the material through the machine, a wheel of adjustable diameter adapted to be engaged on its circumference by the material and rotated thereby, a swinging shaft arranged at an angle to the axis of said wheel and provided-with a cutting tool, a cam carried by said wheel and adapted to swing said shaft to move said cutting tool into cutting relation with the material, means for holdin the cutting tool in cutting relation with the material, a second cam adapted to release said means, and means for swinging said shaft to withdraw said cutting tool from the material.

5. In a machine of the class described, the combination of a frame, means for moving the material through the machine, a wheel Copies of this patent may be obtained for five cents each,

movable into and out of engagement on, its

circumference with the material and adapted to be rotated thereby, a shaft carried by said frame, an arm on said shaft, a cutting too-l carried by said arm, a fixed cam on said wheel, an adjustable cam on said wheel means actuated by one of said cams for moving said cutting tool into cutting relation with the material, and means for holding said cutting tool in cutting relation with the material and adapted to be released by the other of said cams.

' In testimony whereof I afiix my signature in presence of two witnesses.

CHARLES E. EVANS.

Witnesses J. G. OATOHETT, M. H. NEIMEYER.

by addressing the Commissioner of Patents.

Washington, D. G. 

